EP1223299B1 - Roller blind, in particular insect screen - Google Patents

Abstract

Roller blind, especially an insect-protection roller blind, for covering a window or door opening comprises a cover, e.g. insect-protection fabric, wound/unwound on a winding shaft, and roller blind guides arranged at the side of the window/door opening and open toward the covering. For infinitely variable locking of the cover, at least one rotating lock (5) engaging in the roller blind guide is provided which is transferred against spring force from a blocking position into a release position. Preferred Features: The rotating lock has an anchor (10) and a leaf (11), preferably a two-armed leaf, rotating against it. Two rotating locks are attached opposite each other to the end of the cover.

Description

The invention relates to a roller blind, in particular insect screen, for Covering a window or door opening, with one of a winding shaft off and aufaufelbaren cover, and with the side of the window or Arranged door opening and to the cover open towards the roller guides, wherein for stepless locking of the cover at least one in the respective roller guide engaging rotary latch is provided which is against spring force from a blockade into a release position, and wherein to illustrate the blockage and release position a single Actuating element is provided, which at one end of the cover attached rail is attached, which also carries the rotary latch.

Such a roller blind is disclosed in WO 94/13929 A1. End of the Cover for the roller blind is a rail provided, which at their two Ends engages by means of turning bolts in roller guides. For the change of the Blockade- in the release position, the rail must be tilted. The impairs the functional safety.

In addition, by DE 801 044 C to a locking device Roll curtains known, the release of the blocking both at Move up as well as pulling down a process in the same Way only by changing the direction of force. Also in this case can there are malfunctions.

In the context of US-PS 776,048 a roller blind is disclosed in which two end turnstile are interconnected by a rod, the in turn carries a disc for actuation.

A complicated mechanism for stepless locking of a cover in Side roller guides is the subject of US Patent 1,327,150. Because the Change from the blockage to the release position is by a Pressure actuation of a rod achieved.

In addition, blinds are known from DE 196 39 478 A1. Here are the Roller blind guides equipped with elastically deformable retaining elements, which are stiff-elastic bristles. That way, without great effort in manufacturing and assembly a reliable lateral Leadership without the risk of gap formation or tearing of the Cover and the insect protection fabric are guaranteed.

To operate the known roller blind is a handle that is located on a lower cross member of an associated window frame can be locked. consequently can intermediate positions of the blinds, z. As a semi-open position, not being represented.

To realize a stepless locking of a roller blind, proposes the The prior art, inter alia, a releasable brake before, as in the context No. 6,142,211. Such a procedure requires one relatively sweeping structure of the associated winding shaft, which in particular then disadvantageous is if such a roller blind in existing facilities should be installed, in which only limited installation volume available stands. An example of this is a roller shutter box for receiving a Roller shutter shell and an additional roller blinds, in particular fly screen blinds called. Similar problems arise when such a roller blind For example, with a window for caravans, motorhomes or The like should be combined (see DE 196 51 618 A1).

The invention is based on the technical problem of a roller blind, in particular Insect protection roller blind, the embodiment illustrated in the introduction to develop that a stepless lock with a compact and simple Construction succeeds.

To solve this problem, the invention proposes a generic Rollo ago that the rotary latch an anchor and a contrast reasonable Having wings, which is connected to an actuating pin, the in turn from one associated with the actuator Coupling device is acted upon, wherein the wing at the transition of the Blockade- in the release position a combined rotary and linear movement performs against the spring force. Usually, two rotary latch realized, which is provided opposite the end of the cover are and engages in the associated Roloführungen.

The roller blind guide is usually a U-shaped profile rail, which is designed as a plastic or metal profile rail. This roller blind guide can be equipped with an optional roller shutter guide combine when the roller blind described in or on a roller shutter box is arranged. This can roller blind guide and roller shutter guide a Form common component or united together by latching connection be as described in DE 199 46 405.7.

The roller blind, in particular insect screen, is preferably a roller blind, which causes the windable Cover must be unwound from the winding shaft against spring force and automatically wound up when releasing the cover on the winding shaft or rolled up. Such a Springrollo is described in detail in DE 196 40 846 A1, to which express reference is made.

The actuating element may be an actuating slide or act a tension member. This essentially performs a linear motion in Winding direction of the cover to the rotary latch in the various Positions (at least blockade and release position) to be able to transfer. Of course, a knob is also suitable as an actuator, as long as It is ensured that most of the ends of the rail in the respective Roller guide engaging rotary latch in the various positions are transferable.

In detail, the actuating element acts on at least two of the respective Rollo guides associated pivoting lever. These swivel levers convert the linear movement of the actuating element in the winding direction of the Cover in a combined turn / pull movement perpendicular to this. This combined rotary / pulling movement runs - as the winding direction - in a plane spanned by the cover, only essentially perpendicular to the winding direction. This is in the context of the description of the figures explained in more detail.

In any case, the linear movement of the actuator ensures that the associated rotary bolt against spring force from its blockade in the Release position is transferred.

The rotary latch comprises the armature and the other hand rotatable Wing. This wing is preferably a bifurcated wing, which with its two ends each blocking in the open roller blind guide intervenes. In this case, the wing or Zweiarmflügel runs in Release position of the rotary bolt regularly collinear compared to a End plate of the anchor or in comparison to the longitudinal extent of the respective roller blind guide associated slot. This ensures that that the cover and thus the end of the cover attached Rail freely in the open roller blind guide in the slot to be moved back and forth can when the rotary latch is in the release position.

In contrast, the wing or two-arm wing closes in a blockage position given angle with the aforementioned end plate or in Lengthwise extending slot of the roller blind guide. As a result, that the two wing ends with wedge action against the two U-legs of the lie mostly in cross-section U-shaped executed roller blind guide. The Rollo thus becomes reliable in blocking position of the rotary latch in the roller blind guides wedged. It only needs to be ensured that the Applied wedge force the restoring force provided by the Springrollo exceeds, so that the cover remains in the desired position.

The wing performs the transition from the blockade to the release position usually a combined rotary and linear movement against the spring force. Around To be able to represent this movement is the wing on the actuating pin connected, which in turn from the with the actuator in Connected coupling device is acted upon. In this coupling device it can be a rod, a rope, a suitable thread or the like.

Always a roller blind, in particular insect screen is available which is characterized by a particularly compact and simple construction distinguished. Because a complicated constructed releasable brake, like the State of the art teaches is not required (see US 6,142,211). Nevertheless succeeds a stepless locking of the roller blind or the Cover and thus a flexible and variable coverage an associated window or door opening. To this end it is only necessary to the actuator to apply to the rotary latch of its usually taken blockade- in the release position is transferred. Because mostly two rotary bolt on both sides the cover or both sides of the end-side rail are provided, canting the cover be reliably excluded. As long as the actuator is applied, are the two Turnstile in its release position, so that the Cover, the end rail and thus the blind in the freely moved up and down in the two roller blind guides can be.

Only when the actuator is released again, go over the rotary latch in their blockade position, because they are so far acted upon by the spring, which is mostly the actuating pin connected to the wing encloses and rests on the bottom of the anchor. To this Way, the roller blind and also the cover can be stepless be arrested so that, for example, one behind the Roller blind located sliding door can be closed on the window sill flowers poured or even one Shutter can be operated. So it is not anymore required the roller blind overall for such activities what to open, especially in insect-rich summers represents a clear advantage.

The compact and simple construction makes this possible Blinds easily combine with a roller shutter box, especially in these integrate. Special measures the roller blind guides also do not have to be grasped so that a retrofit succeeds easily. Here are to see the main advantages.

Fig. 1

ein erfindungsgemäßes Rollo in perspektivischer Ansicht;

Fig. 2

einen schematischen Schnitt durch Fig. 1 entlang der Linie A-A;

Fig. 3

eine Ansicht des Betätigungselementes nach Fig. 2 bei abgenommener Abdeckung aus Richtung X;

Fig. 4

den Drehriegel in perspektivischer Explosionsdarstellung und

Fig. 5

eine Frontansicht des Drehriegels mit den verschiedenen Funktionsstellungen.

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:

Fig. 1

an inventive blind in perspective view;

Fig. 2

a schematic section through Figure 1 along the line AA.

Fig. 3

a view of the actuating element of Figure 2 with the cover removed from the direction X;

Fig. 4

the rotary latch in perspective exploded view and

Fig. 5

a front view of the rotary latch with the various functional positions.

In the figures, a roller blind, according to the embodiment an insect screen, shown. This serves for Covering a window or door opening 1. Basically Structure of the roller blinds includes a winding shaft 2, on the one off and on this wound up cover 3 is stored. When the cover 3 is in the Frame of the embodiment to an insect protection fabric 3 of gauze. Of course, at this point also a more or less transparent sunshade cover be used. Likewise, combinations become includes. In addition, it is conceivable that the cover 3 as Plastic film or fabric cover is executed. In addition, the roller blind shown is not only for Covering of window or door openings 1 in buildings, but also for combination with example Display windows on caravans, motorhomes etc.

The winding shaft 2 is only indicated by a torsion spring 4 surrounded. This torsion spring 4 spans in the course the unwinding of the cover 3 of the winding shaft 2. Das Winding up happens automatically by relieving the prestressed torsion spring 4, as generally in Spring Rollos is known (see also the GB-A 927 567). In any case, the torsion spring 4 ensures that unwound from the winding shaft 2 cover third is automatically rewound onto the winding shaft 2, if not provided for a locking of the cover 3 becomes.

This lock is within the scope of the invention with the help Turnstiles 5 accomplished in the side of the Window or door opening 1 extending roller blind guides 6 intervention. For this purpose, the roller blind guides 6 for Cover 3 designed open and in total in cross section U-shaped. At the cover 3 closes end a rail 7, which in a longitudinal extending slot 8 of the respective roller blind guide. 6 to be led. For this purpose, the two run Roller blind guides 6 each on both sides of the window or Door opening 1 and are as U-shaped roller blind guide rails 6 trained.

Not shown brushes on both sides of the U-legs of the respective roller blind guide 6 provide with their each directed against the cover 3 bristles for a insect-tight completion of the cover 3 in the Roller blind guide 6, as basically in the beginning already mentioned DE-196 39 478 A1 is described.

At both ends of the rail 7 is a respective rotary latch. 5 attached as he enlarged in the context of FIG. 4 to recognize. Both rotary latch 5 are related to a central of the rail 7 arranged actuator 16 diametrically opposite. The respective rotary latch 5 provides for a stepless locking of the blinds and thus the Cover 3 by the rotary latch 5 in his Blockade position is transferred. This functional position takes the rotary latch 5 usually because a spring. 9 ensures that the rotary latch 5 in the in Fig. 5 is shown in solid blockage position shown. In contrast, the release position of the rotary latch is the fifth dash-dotted lines in Fig. 5 shown.

This is done in detail so that the Rotary latch 5 is equipped with an anchor 10 and above In addition, a contrast has rotatable wings 11. With the help of the armature 10 and its end plate 19 is the Rail 7 in the respective slot 8 of the roller blind guide. 6 guided. The wing 11 is in the context of Embodiment to a Zweiarmflügel 11, the in a receptacle 12 end of an actuating pin thirteenth is recorded.

The actuating pin 13 is diametrically to his Rotary axis D arranged guide pins 14 provided in a guide 15 engage in the armature 10. This guide 15 is helical, so that the actuating pin 13, the Guide pin 14, the receptacle 12 and finally the Zweiarmflügel 11 a combined rotary and linear movement perform against the force of the spring 9, if a Linear force or combined rotary / linear force in the direction the axis of rotation D is applied, as a double arrow L in Fig. 4 represents.

In the context of this combined rotary and linear movement against the force of the spring 9 of the Zweiarmflügel 11 of his usually taken blockage position (drawn in solid lines in Fig. 5) in the release position (dash-dotted line in Fig. 5) transferred. In the Fig. 4 by the double arrow 4 forces are shown provided by the actuator 16, which via a coupling device 17 with the actuating pin 13 communicates.

When the actuator 16 is in the context of Embodiment to an actuating slide 16, which is manually in the by an arrow in Fig. 2 shown way down in the winding direction W can be pressed and from this position spring assisted and automatically snaps back up. Basically also a reverse operation up and a Snap back down - both in Winding direction W - conceivable. Anyhow, this manual provides Actuation of the actuator 16 that the both attached at each end of the rail 7 Rotary latch 5 or two-arm 11 of their usual assumed blocking position in the release position be transferred.

Because in the blockage position is the respective two-arm wing 11 with its ends 18 in each case on the inside U-legs of the roller guide 6, as shown in FIG. 5 shows. In this case, the two-arm wing 11 closes with the Slot 8 and the longitudinal extent of the respective Roller blind 6 an acute angle α a, which is in Range moved between 40 ° and 90 °. Of course is a similar angle α between the Zweiarmflügel 11 and the end plate 19 of the armature 10th ingested.

If now the actuator 16 applied manually is, ensures the force applied thereby at the coupling device 17 that the actuating pin 13 in the Frame of Fig. 4 is pulled to the right to rotate. These Pulling movement is by the guide pin 14 and the associated guide 15 in the armature 10 in a combined rotary and linear motion implemented at the end of the respective Zweiarmflügel 11 which in Fig. 5 dash-dotted lines clarified Release position occupies.

It can be seen immediately that then the rail 7 and Thus, the cover 3 flexible in the associated Roller blind guide 6 reciprocating in the longitudinal direction let, as long as the actuator 16th is applied manually. Once the actuator 16 but is released, eliminates the admission of Coupling 17 and the respective rotary latch 5 drive back to the blockage position. The cover 3 is locked.

The actuator 16 converts with a Loading connected linear movement in the winding direction W of the cover 3 in a linear motion perpendicular thereto in the longitudinal extension of the rail 7 um. This vertical Direction is shown by the double arrow L in Fig. 1. For this purpose, the actuating element 16 is shown 3 with two the respective roller blind guides. 6 equipped pivot levers 20 equipped. These Pivot levers 20 each rotate about an axis 21. Along the pivot lever 20 is a pivot lever 20th U-shaped enclosing guide pin in the winding direction W moves when the actuator 16 in just this Direction is applied manually. That leads to that the pivot lever 20 evades, in the longitudinal direction L. of the rail 7. This is indicated by respective arrows in FIG. 3 indicated. In just this longitudinal direction L is the Actuating pin 13 for adjusting the rotary bolt. 5 so that the power flow chain from the Actuator 16 via the coupling device 17 for Actuating pin 13 and finally the Zweiarmflügel 11th becomes clear.

Finally, it can be seen with reference to FIG. 2, that the actuating element 16 in total embedded in a locking housing 22 which is engaged in the rail 7 or on this is postponed. That is manufacturing technology especially easy. From two two-sided openings 23 This locking housing 22 enters the coupling device 17th out and ensures the described loading of the Actuating pin 13 by means of the actuating element 16. In the coupling device 17 is in the shown representation around a rope.

Claims (7)

1. Roller blind, in particular, an insect-protection roller blind, for covering a window or door opening (1), with
   a covering (3) that can be wound onto and unwound from a winding shaft (2), and with
   roller blind guides (6) arranged laterally to the window or door opening (1) and opening to the covering (3),
   whereby for continuous interlocking of the covering (3), at least one turning bolt (5) engaging in the respective roller blind guide (6) is provided, which can be transported against a spring force from a blockade position into a release position, and
   whereby for representing the blockade and release position, a single actuating element (16) is provided, which is attached on a rail (7) mounted on an end side of the covering (3), which also supports the turning bolt (5),
   characterized in that
   the turning bolt (5) has an armature (10) and a vane (11) rotatable counter to it, in particular, a two-arm vane (11), which is connected to an actuating pin (13), which is impinged by a coupling device (17) connected with the actuating element (16), whereby
   the vane (11) performs a combined rotational and linear movement against the spring force upon transition from the blockage position into the release position.
2. Roller blind of claim 1, characterized in that the rotatable vane (11) is formed as a two-armed vane (11).
3. Roller blind of claim 1 or 2, characterized in that the vane (11) runs in the release position of the turning bolt (5) co-linear relative to a slot (8) of the roller blind guide (6) and forms a predetermined angle (α) with the slot (8) in the blockade position.
4. Roller blind of one of claims 1 through 3, characterized in that the covering (3) is an insect protection netting (3).
5. Roller blind of one of claims 1 through 4, characterized in that the actuating element (16) is formed as an actuating slider (16) or tensioning member and essentially performs a linear movement in the coiling direction (W) of the covering (3) for transporting the turning bolt (5) into the different positions.
6. Roller blind of one of claims 1 through 5, characterized in that the actuating element (16) impinges at least two pivot levers (20) associated with the respective roller blind guides (6), which convert the linear movement of the actuating element (16) in the coiling direction (W) of the covering (3) into a combined rotational/pulling movement, with whose aid, the turning bolt (5) is transported against the spring force from its blockade position into the release position.
7. Roller blind of one of claims 1 through 6, characterized in that two turning bolts (5) are connected at the end side of the covering (6) opposite one another.

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